EP 4001660 A1 20220525 - IMPELLER OF ROTATING MACHINE AND ROTATING MACHINE
Title (en)
IMPELLER OF ROTATING MACHINE AND ROTATING MACHINE
Title (de)
LAUFRAD FÜR EINE ROTIERENDE MASCHINE UND ROTIERENDE MASCHINE
Title (fr)
ROTOR DE MACHINE TOURNANTE ET MACHINE TOURNANTE
Publication
Application
Priority
JP 2020188402 A 20201112
Abstract (en)
The impeller of a rotating machine according to at least one embodiment of the present discloser is provided with: a disc; a cover disposed on an opposite side of a radial passage from the disc in an axial direction; and a blade disposed between the disc and the cover. In a dimensionless position along a camber line of the blade when the position of a leading edge of the blade is defined as 0 and the position of a trailing edge of the blade is defined as 1, a position where an angle difference between a first blade angle at a disc-side end portion of the blade and a second blade angle at a cover-side end portion of the blade is maximum is in a range of 0.5 or more and 1 or less. The first blade angle is -10 degrees or more and 0 degrees or less at the position where the angle difference is maximum.
IPC 8 full level
F04D 29/30 (2006.01); F04D 29/28 (2006.01); F04D 17/12 (2006.01)
CPC (source: CN EP US)
F04D 17/122 (2013.01 - EP US); F04D 29/284 (2013.01 - EP); F04D 29/286 (2013.01 - CN US); F04D 29/30 (2013.01 - CN EP); F05D 2240/301 (2013.01 - US); F05D 2240/303 (2013.01 - EP US); F05D 2240/304 (2013.01 - US)
Citation (applicant)
JP 2011122516 A 20110623 - MITSUBISHI HEAVY IND LTD
Citation (search report)
- [IA] US 10634157 B2 20200428 - RUBINO DANTE TOMMASO [IT], et al
- [I] US 5685696 A 19971111 - ZANGENEH MEHRDAD [GB], et al
- [I] CN 101865145 B 20120919 - HITACHI APPLIANCES INC
- [A] DE 4220227 A1 19931223 - BOSCH GMBH ROBERT [DE]
- [A] US 2016238019 A1 20160818 - KOBAYASHI HIROMI [JP], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 4001660 A1 20220525; EP 4001660 B1 20240717; CN 114483646 A 20220513; JP 2022077570 A 20220524; JP 7453896 B2 20240321; US 11572888 B2 20230207; US 2022145898 A1 20220512
DOCDB simple family (application)
EP 21206286 A 20211103; CN 202111302886 A 20211104; JP 2020188402 A 20201112; US 202117497407 A 20211008